public void RemoveAdvertiser(AdvertisementWrapper advertiser)
{
int index = 0;
bool fFound = false;
lock (thisLock)
{
// Lookup the index
foreach (var a in advertisers)
{
if (a.InternalId == advertiser.InternalId)
{
fFound = true;
break;
}
++index;
}
}
if (fFound)
{
RemoveAdvertiser(index);
}
else
{
NotifyUser("Advertiser not found in list", NotifyType.ErrorMessage);
}
}
public void UnpublishService(int index)
{
ThrowIfDisposed();
AdvertisementWrapper advertiser = null;
lock (thisLock)
{
if (index > advertisers.Count - 1)
{
throw new IndexOutOfRangeException("Attempted to stop service not found in list");
}
advertiser = advertisers[index];
}
try
{
advertiser.Advertiser.Stop();
}
catch (Exception ex)
{
RootPage.NotifyUser("Stop Advertisement Failed: " + ex.Message, NotifyType.ErrorMessage);
}
}
public void AddSessionRequest(WiFiDirectServiceSessionRequest request, AdvertisementWrapper advertiser)
{
// Update UI to add this to list
if (scenario2 != null)
{
scenario2.AddSessionRequest(request, advertiser);
}
}
public async void AddAdvertiser(AdvertisementWrapper advertiser)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
lock (thisLock)
{
Advertisements.Items.Add(advertiser);
}
});
}
private void AddAdvertiser(AdvertisementWrapper advertiser)
{
lock (thisLock)
{
advertisers.Add(advertiser);
}
// Update UI to add this to list
if (scenario2 != null)
{
scenario2.AddAdvertiser(advertiser);
}
}
public void AdvertiserStatusChanged(AdvertisementWrapper advertiser)
{
if (advertiser.Advertiser.AdvertisementStatus == WiFiDirectServiceAdvertisementStatus.Aborted ||
advertiser.Advertiser.AdvertisementStatus == WiFiDirectServiceAdvertisementStatus.Stopped)
{
RemoveAdvertiser(advertiser);
}
else
{
if (scenario2 != null)
{
scenario2.UpdateAdvertiserStatus(advertiser);
}
}
}
public SessionRequestWrapper(WiFiDirectServiceSessionRequest request, AdvertisementWrapper advertisement)
{
this.Id = request.DeviceInformation.Id;
this.Advertisement = advertisement;
this.Pin = "";
this.ProvisioningInfo = "GroupFormation? " + (request.ProvisioningInfo.IsGroupFormationNeeded ? "Yes" : "No")
+ ", ConfigMethod: " + request.ProvisioningInfo.SelectedConfigurationMethod.ToString();
if (request.ProvisioningInfo.SelectedConfigurationMethod == WiFiDirectServiceConfigurationMethod.PinDisplay)
{
this.Pin = advertisement.Pin;
}
this.SessionInfo = request.SessionInfo;
}
public SessionRequestWrapper(WiFiDirectServiceSessionRequest request, AdvertisementWrapper advertisement)
{
this.Id = request.DeviceInformation.Id;
this.Advertisement = advertisement;
this.Pin = "";
this.ProvisioningInfo = "GroupFormation? " + (request.ProvisioningInfo.IsGroupFormationNeeded ? "Yes" : "No")
+ ", ConfigMethod: " + request.ProvisioningInfo.SelectedConfigurationMethod.ToString();
if (request.ProvisioningInfo.SelectedConfigurationMethod == WiFiDirectServiceConfigurationMethod.PinDisplay)
{
this.Pin = advertisement.Pin;
}
this.SessionInfo = request.SessionInfo;
}
public void UpdateAdvertiserStatus(AdvertisementWrapper advertiser)
{
// Update list
}
public void StartAdvertisement(
string serviceName,
bool autoAccept,
bool preferGO,
string pin,
IList <WiFiDirectServiceConfigurationMethod> configMethods,
WiFiDirectServiceStatus status,
uint customStatus,
string serviceInfo,
string deferredServiceInfo,
IList <String> prefixList
)
{
ThrowIfDisposed();
// Create Advertiser object for the service
// NOTE: service name is internally limited to up to 255 bytes in UTF-8 encoding
// Valid characters include alpha-numeric, '.', '-', and any multi-byte character
// characters a-z, A-Z are case-insensitive when discovering services
WiFiDirectServiceAdvertiser advertiser = new WiFiDirectServiceAdvertiser(serviceName);
// Auto-accept services will connect without interaction from advertiser
// NOTE: if the config method used for a connection requires a PIN, then the advertiser will have to accept the connection
advertiser.AutoAcceptSession = autoAccept;
// Set the Group Owner intent to a large value so that the advertiser will try to become the group owner (GO)
// NOTE: The GO of a P2P connection can connect to multiple clients while the client can connect to a single GO only
advertiser.PreferGroupOwnerMode = preferGO;
// Default status is "Available", but services may use a custom status code (value > 1) if applicable
advertiser.ServiceStatus = status;
advertiser.CustomServiceStatusCode = customStatus;
// Service information can be up to 65000 bytes.
// Service Seeker may explicitly discover this by specifying a short buffer that is a subset of this buffer.
// If seeker portion matches, then entire buffer is returned, otherwise, the service information is not returned to the seeker
// This sample uses a string for the buffer but it can be any data
if (serviceInfo != null && serviceInfo.Length > 0)
{
using (var tempStream = new Windows.Storage.Streams.InMemoryRandomAccessStream())
{
using (var serviceInfoDataWriter = new Windows.Storage.Streams.DataWriter(tempStream))
{
serviceInfoDataWriter.WriteString(serviceInfo);
advertiser.ServiceInfo = serviceInfoDataWriter.DetachBuffer();
}
}
}
else
{
advertiser.ServiceInfo = null;
}
// This is a buffer of up to 144 bytes that is sent to the seeker in case the connection is "deferred" (i.e. not auto-accepted)
// This buffer will be sent when auto-accept is false, or if a PIN is required to complete the connection
// For the sample, we use a string, but it can contain any data
if (deferredServiceInfo != null && deferredServiceInfo.Length > 0)
{
using (var tempStream = new Windows.Storage.Streams.InMemoryRandomAccessStream())
{
using (var deferredSessionInfoDataWriter = new Windows.Storage.Streams.DataWriter(tempStream))
{
deferredSessionInfoDataWriter.WriteString(deferredServiceInfo);
advertiser.DeferredSessionInfo = deferredSessionInfoDataWriter.DetachBuffer();
}
}
}
else
{
advertiser.DeferredSessionInfo = null;
}
// The advertiser supported configuration methods
// Valid values are PIN-only (either keypad entry, display, or both), or PIN (keypad entry, display, or both) and WFD Services default
// WFD Services Default config method does not require explicit PIN entry and offers a more seamless connection experience
// Typically, an advertiser will support PIN display (and WFD Services Default), and a seeker will connect with either PIN entry or WFD Services Default
if (configMethods != null)
{
advertiser.PreferredConfigurationMethods.Clear();
foreach (var configMethod in configMethods)
{
advertiser.PreferredConfigurationMethods.Add(configMethod);
}
}
// Advertiser may also be discoverable by a prefix of the service name. Must explicitly specify prefixes allowed here.
if (prefixList != null && prefixList.Count > 0)
{
advertiser.ServiceNamePrefixes.Clear();
foreach (var prefix in prefixList)
{
advertiser.ServiceNamePrefixes.Add(prefix);
}
}
// For this sample, we wrap the advertiser in our own object which handles the advertiser events
AdvertisementWrapper advertiserWrapper = new AdvertisementWrapper(advertiser, this, pin);
AddAdvertiser(advertiserWrapper);
RootPage.NotifyUser("Starting service...", NotifyType.StatusMessage);
try
{
// This may fail if the driver is unable to handle the request or if services is not supported
// NOTE: this must be called from the UI thread of the app
advertiser.Start();
}
catch (Exception ex)
{
RootPage.NotifyUser(String.Format(CultureInfo.InvariantCulture, "Failed to start service: {0}", ex.Message), NotifyType.ErrorMessage);
throw;
}
}
public async void RemoveSessionRequest(WiFiDirectServiceSessionRequest request, AdvertisementWrapper advertiser)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
lock (thisLock)
{
foreach (SessionRequestWrapper r in SessionRequests.Items)
{
if (r.Advertisement.InternalId == advertiser.InternalId &&
r.Id == request.DeviceInformation.Id)
{
SessionRequests.Items.Remove(r);
break;
}
}
}
});
}
public void RemoveSessionRequest(WiFiDirectServiceSessionRequest request, AdvertisementWrapper advertiser)
{
// Update UI to remove from list
if (scenario2 != null)
{
scenario2.RemoveSessionRequest(request, advertiser);
}
}
public void AdvertiserStatusChanged(AdvertisementWrapper advertiser)
{
if (advertiser.Advertiser.AdvertisementStatus == WiFiDirectServiceAdvertisementStatus.Aborted ||
advertiser.Advertiser.AdvertisementStatus == WiFiDirectServiceAdvertisementStatus.Stopped)
{
RemoveAdvertiser(advertiser);
}
else
{
if (scenario2 != null)
{
scenario2.UpdateAdvertiserStatus(advertiser);
}
}
}
public async void AddSessionRequest(WiFiDirectServiceSessionRequest request, AdvertisementWrapper advertiser)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
lock (thisLock)
{
SessionRequestWrapper sessionRequest = new SessionRequestWrapper(request, advertiser);
SessionRequests.Items.Add(sessionRequest);
}
});
}
public void AddSessionRequest(WiFiDirectServiceSessionRequest request, AdvertisementWrapper advertiser)
{
// Update UI to add this to list
if (scenario2 != null)
{
scenario2.AddSessionRequest(request, advertiser);
}
}
public void RemoveSessionRequest(WiFiDirectServiceSessionRequest request, AdvertisementWrapper advertiser)
{
// Update UI to remove from list
if (scenario2 != null)
{
scenario2.RemoveSessionRequest(request, advertiser);
}
}
private void AddAdvertiser(AdvertisementWrapper advertiser)
{
lock (thisLock)
{
advertisers.Add(advertiser);
}
// Update UI to add this to list
if (scenario2 != null)
{
scenario2.AddAdvertiser(advertiser);
}
}
public void RemoveAdvertiser(AdvertisementWrapper advertiser)
{
int index = 0;
bool fFound = false;
lock (thisLock)
{
// Lookup the index
foreach (var a in advertisers)
{
if (a.InternalId == advertiser.InternalId)
{
fFound = true;
break;
}
++index;
}
}
if (fFound)
{
RemoveAdvertiser(index);
}
else
{
NotifyUser("Advertiser not found in list", NotifyType.ErrorMessage);
}
}
public void StartAdvertisement(
string serviceName,
bool autoAccept,
bool preferGO,
string pin,
IList<WiFiDirectServiceConfigurationMethod> configMethods,
WiFiDirectServiceStatus status,
uint customStatus,
string serviceInfo,
string deferredServiceInfo,
IList<String> prefixList
)
{
ThrowIfDisposed();
// Create Advertiser object for the service
// NOTE: service name is internally limited to up to 255 bytes in UTF-8 encoding
// Valid characters include alpha-numeric, '.', '-', and any multi-byte character
// characters a-z, A-Z are case-insensitive when discovering services
WiFiDirectServiceAdvertiser advertiser = new WiFiDirectServiceAdvertiser(serviceName);
// Auto-accept services will connect without interaction from advertiser
// NOTE: if the config method used for a connection requires a PIN, then the advertiser will have to accept the connection
advertiser.AutoAcceptSession = autoAccept;
// Set the Group Owner intent to a large value so that the advertiser will try to become the group owner (GO)
// NOTE: The GO of a P2P connection can connect to multiple clients while the client can connect to a single GO only
advertiser.PreferGroupOwnerMode = preferGO;
// Default status is "Available", but services may use a custom status code (value > 1) if applicable
advertiser.ServiceStatus = status;
advertiser.CustomServiceStatusCode = customStatus;
// Service information can be up to 65000 bytes.
// Service Seeker may explicitly discover this by specifying a short buffer that is a subset of this buffer.
// If seeker portion matches, then entire buffer is returned, otherwise, the service information is not returned to the seeker
// This sample uses a string for the buffer but it can be any data
if (serviceInfo != null && serviceInfo.Length > 0)
{
using (var tempStream = new Windows.Storage.Streams.InMemoryRandomAccessStream())
{
using (var serviceInfoDataWriter = new Windows.Storage.Streams.DataWriter(tempStream))
{
serviceInfoDataWriter.WriteString(serviceInfo);
advertiser.ServiceInfo = serviceInfoDataWriter.DetachBuffer();
}
}
}
else
{
advertiser.ServiceInfo = null;
}
// This is a buffer of up to 144 bytes that is sent to the seeker in case the connection is "deferred" (i.e. not auto-accepted)
// This buffer will be sent when auto-accept is false, or if a PIN is required to complete the connection
// For the sample, we use a string, but it can contain any data
if (deferredServiceInfo != null && deferredServiceInfo.Length > 0)
{
using (var tempStream = new Windows.Storage.Streams.InMemoryRandomAccessStream())
{
using (var deferredSessionInfoDataWriter = new Windows.Storage.Streams.DataWriter(tempStream))
{
deferredSessionInfoDataWriter.WriteString(deferredServiceInfo);
advertiser.DeferredSessionInfo = deferredSessionInfoDataWriter.DetachBuffer();
}
}
}
else
{
advertiser.DeferredSessionInfo = null;
}
// The advertiser supported configuration methods
// Valid values are PIN-only (either keypad entry, display, or both), or PIN (keypad entry, display, or both) and WFD Services default
// WFD Services Default config method does not require explicit PIN entry and offers a more seamless connection experience
// Typically, an advertiser will support PIN display (and WFD Services Default), and a seeker will connect with either PIN entry or WFD Services Default
if (configMethods != null)
{
advertiser.PreferredConfigurationMethods.Clear();
foreach (var configMethod in configMethods)
{
advertiser.PreferredConfigurationMethods.Add(configMethod);
}
}
// Advertiser may also be discoverable by a prefix of the service name. Must explicitly specify prefixes allowed here.
if (prefixList != null && prefixList.Count > 0)
{
advertiser.ServiceNamePrefixes.Clear();
foreach (var prefix in prefixList)
{
advertiser.ServiceNamePrefixes.Add(prefix);
}
}
// For this sample, we wrap the advertiser in our own object which handles the advertiser events
AdvertisementWrapper advertiserWrapper = new AdvertisementWrapper(advertiser, this, pin);
AddAdvertiser(advertiserWrapper);
RootPage.NotifyUser("Starting service...", NotifyType.StatusMessage);
try
{
// This may fail if the driver is unable to handle the request or if services is not supported
// NOTE: this must be called from the UI thread of the app
advertiser.Start();
}
catch (Exception ex)
{
RootPage.NotifyUser(String.Format(CultureInfo.InvariantCulture, "Failed to start service: {0}", ex.Message), NotifyType.ErrorMessage);
throw;
}
}
public async void AddSessionRequest(WiFiDirectServiceSessionRequest request, AdvertisementWrapper advertiser)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
lock (thisLock)
{
SessionRequestWrapper sessionRequest = new SessionRequestWrapper(request, advertiser);
SessionRequests.Items.Add(sessionRequest);
}
});
}
public void UpdateAdvertiserStatus(AdvertisementWrapper advertiser)
{
// Update list
}
public async void AddAdvertiser(AdvertisementWrapper advertiser)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
lock (thisLock)
{
Advertisements.Items.Add(advertiser);
}
});
}
public async void RemoveSessionRequest(WiFiDirectServiceSessionRequest request, AdvertisementWrapper advertiser)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
lock (thisLock)
{
foreach (SessionRequestWrapper r in SessionRequests.Items)
{
if (r.Advertisement.InternalId == advertiser.InternalId &&
r.Id == request.DeviceInformation.Id)
{
SessionRequests.Items.Remove(r);
break;
}
}
}
});
}
